Table 5.

Intention-to-Treat: Linear, Median and Poisson Regression Coefficients (β, 95%CI, p-value) for the Effects of Prenatal Exercise on Race and Delivery and Birth Outcomes

Characteristics	Model (Race + covariate [s])			Adjusted (Model 1 + Exercise)
	β or RRb	95%CI	p-value	β or RRb	95%CI	p-value
Delivery
Gestational Agea	− 0.67	− 1.40, 0.06	0.07	− 0.48	− 1.2, 0.22	0.18
Preterm (%)b	2.33	0.99, 8.94	0.053	2.23	0.70, 7.04	0.17
Cesarean Section (%)b	1.04	0.72, 1.50	0.83	1.04	0.71, 1.53	0.84
Birth Outcomes
Birthweight (kg) c	−0.43	−0.68, − 0.18	0.001	− 0.39	− 0.65, − 0.13	0.004
Low Birthweight (%)b	2.24	0.71, 7.05	0.17	2.02	0.59, 6.86	0.26

Note: Model-specific covariates included 1) gestational age: pre-pregnancy BMI, MET∙min∙week⁻¹; 2) preterm: pre-pregnancy BMI, MET∙min∙week^− 1; 3) cesarean section: MET∙min∙week^− 1; 4) birthweight: MET∙min∙week^− 1; and 5) low birthweight: MET∙min∙week^− 1. ^a Median regression was performed and the respective βs were reported. ^b Poisson regression was performed, and the respective relative risks are reported. ^c Linear regression was performed and the respective βs were reported